S-8261ABBMD-G3BT2G

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Power management integrated circuits (PMICs) are vital components to many modern electronic systems. Their range of applications includes on-board battery management and power supply control, among others. The S-8261ABBMD-G3BT2G PMIC is a power management IC specifically targeted towards battery management applications. This document describes the S-8261ABBMD-G3BT2G\'s application field and working principle.

Application Field

The S-8261ABBMD-G3BT2G is designed for handheld devices and consumer electronics with an explicit focus on battery management. Its relatively small footprint and low power consumption make it an ideal choice for small, power-conscious consumer applications such as smartphones and digital cameras. Its high level of integration also makes it suitable for applications where space is at a premium.

The S-8261ABBMD-G3BT2G integrates a step-down DC-DC converter, one power MOSFET and a low-dropout voltage regulator (LDO). This combination of components allows the IC to provide a regulated output voltage in a wide range of battery types and operating conditions. The DC-DC converter allows the S-8261ABBMD-G3BT2G to optimize the amount of power delivered to the load while limiting the power losses of the circuit due to voltage drops.

The S-8261ABBMD-G3BT2G also includes several safety features such as overvoltage protection (OVP) and short-circuit protection (SCP). This ensures that the IC does not draw more power than necessary, thus prolonging the battery lifetime. Furthermore, the chip can be configured for either step-up or step-down operation, allowing it to be used in a wide variety of battery management applications.

Working Principle

The S-8261ABBMD-G3BT2G is a power management IC that provides a regulated output voltage based on the voltage of the source battery. The IC contains two core components – a step-down DC-DC converter and a low-dropout (LDO) voltage regulator. The IC is designed to be reconfigurable, meaning that it can be configured to either step-up or step-down depending on the application.

The DC-DC converter is the first stage of the S-8261ABBMD-G3BT2G and is responsible for regulating the output voltage. The converter receives a reference voltage from the external source, which is then compared to the voltage of the battery. If the voltage of the battery is lower than the reference voltage, the converter will step up the voltage from the battery. Conversely, if the voltage of the battery is higher than the reference voltage, the converter will step down the voltage from the battery.

The second stage of the S-8261ABBMD-G3BT2G is the low-dropout (LDO) voltage regulator. The regulator receives the output from the converter and adjusts the voltage to the desired level. The regulator also performs several tasks such as overvoltage protection (OVP) and short-circuit protection (SCP). The OVP function ensures that the battery does not receive more voltage than it can safely handle, while the SCP prevents the circuit from drawing more power than necessary.

The S-8261ABBMD-G3BT2G is designed to be used in handheld devices and consumer electronics with an explicit focus on battery management. It offers an economic solution for applications that require a small size and low power consumption while providing extremely low voltage drops across the device. Its reconfigurable configuration and safety features make it an ideal choice for battery management applications.

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